We look at the division of 743606 by 9 
The aim is to understand the frequency of 9 in 743606.

On to step 1:
9 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 9

Let's proceed to step 2:
9 goes into 74 8 times with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 72 from 74 leaves us with 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 9

Let's proceed to step 3:
The number 9 fits into 23 2 times, leaving a remainder of 5.
The next digit of our result is 2. 
Result so far: 82.0
Subtract 18 from 23 to get 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 9

Step 4:
9 can be fit into 56 6 times, resulting in a remainder of 2.
The next digit of our result is 6. 
Result so far: 826.0
Subtract 54 from 56 to get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 9

Step 5:
If we divide 20 by 9, we get 2 and a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 8262.0
Subtract 18 from 20 to get 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 9

Moving on to step 6:
26 divided by 9 is 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 82622.0
Deduct 18 from 26 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
When dividing 80 by 9, we get 8 with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 82622.8
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 8:
If we divide 80 by 9, we get 8 and a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 82622.88
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 82622.88, and the remainder is 0.008.